Use of Internal Curing Materials to Improve Performance of Concrete Infrastructure

The project presented in this report seeks to develop a proper methodology to use saturated lightweight sand (LWS) to improve the performance and prolong the service life of concrete mixtures. High-performance concrete (HPC) approved by the Missouri Department of Transportation (MoDOT) was used for the baseline mixture and was modified with different types and contents of saturated LWS used for internal curing. This was done to evaluate the optimum dosage of LWSs and maximize their effectiveness on enhancing performance. The performance improvement from the LWS mainly focused on reducing shrinkage and resulting cracking potential without sacrificing durability and cost competence of the HPC. The project established new mixture design and curing recommendations for concrete made with LWS and validated their performance through laboratory investigation. The results obtained in this work are expected to provide a basis for: (1) New mixture design methodology and guidelines for using LWS for bridge and pavement applications; and (2) Validation of performance improvement when using internal curing and cost competitiveness in the State of Missouri.

• Record URL:
  https://recast.mst.edu/media/research/recast/documents/finalreports/Internal_Curing_RE-CAST_Final_Report.pdf
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/37916
• Supplemental Notes:
  • This research was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  Research on Concrete Applications for Sustainable Transportation (RE-CAST)

  Missouri University of Science and Technology
  Rolla, MO  United States  65409-0710

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Authors:
  • Khayat, Kamal H
  • Meng, Weina
  • Valipour, Mahdi
  • Hopkins, Matthew
• Publication Date: 2018-2

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Figures; Photos; References; Tables;
• Pagination: 92p

Subject/Index Terms

• TRT Terms: Concrete bridges; Concrete curing; Concrete pavements; High performance concrete; Mix design; Sand
• Uncontrolled Terms: Internal curing; Lightweight sand; Saturated sand
• Geographic Terms: Missouri
• Subject Areas: Bridges and other structures; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01685258
• Record Type: Publication
• Report/Paper Numbers: RECAST UTC #0055456, Project #0055456
• Contract Numbers: DTRT13-G-UTC45
• Files: UTC, NTL, TRIS, ATRI, USDOT
• Created Date: Nov 13 2018 12:21PM